Electrical Control of the Direction of Spin Accumulation

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Takashi Kimura,^1,2 YoshiChika Otani,^1,2 and Peter M. Levy³
¹Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
²RIKEN FRS, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
³Department of Physics, New York University, 4 Washington Place, New York, New York 10003, USA

Received 25 April 2007; published 18 October 2007

Weare able to continuously change the direction of polarization ofspin accumulation in a nonmagnetic metal by varying the currentsinjected by two ferromagnetic spin injectors. From measurements made ata distance from the injection area, we find a cos phi variation of the spin signal. This confirms that the angleof polarization of the nonlocal spin polarization with respect tothe magnetization of the fixed spin detector is continuously variedas we change the injection currents. We give an explanationfor the origin of this simple cos phi variation of thespin signal.

URL:	http://link.aps.org/doi/10.1103/PhysRevLett.99.166601
DOI:	10.1103/PhysRevLett.99.166601
PACS:	72.25.Ba; 72.25.Mk; 75.70.Cn; 75.75.+a 72.25.Ba Spin polarized transport in metals 72.25.Mk Spin transport through interfaces 75.70.Cn Magnetic properties of interfaces (multilayers, superlattices, heterostructures) 75.75.+a Magnetic properties of nanostructures YEAR: 2007

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M. Johnson, Phys. Rev. Lett. 70, 2142 (1993);

J. Appl. Phys. 75, 6714 (1994)

T. Kimura, J. Hamrle, and Y. Otani, Phys. Rev. B 72, 014461 (2005).
P. Dauguet, P. Gandit, J. Chaussy, S. F. Lee, A. Fert, and P. Holody, Phys. Rev. B 54, 1083 (1996);

Phys. Rev. B 54, 11 965 (1996)

Jianwei Zhang and Peter M. Levy, Phys. Rev. B 70, 184442 (2004).
While there are several ways of representing the out-of-equilibrium distribution function in the literature, we follow the spinor notation used in Jianwei Zhang, Peter M. Levy, Shufeng Zhang, and Vladimir Antropov, Phys. Rev. Lett. 93, 256602 (2004).
Albert Fert and Shang-Fan Lee, Phys. Rev. B 53, 6554 (1996).
Selman Hershfield and Hui Lin Zhao, Phys. Rev. B 56, 3296 (1997).
S. Takahashi and S. Maekawa, Phys. Rev. B 67, 052409 (2003).
S. Zhang, P. M. Levy, and A. Fert, Phys. Rev. B 45, 8689 (1992).
Peter M. Levy and Jianwei Zhang, Phys. Rev. B 70, 132406 (2004).